Question
In: Statistics and Probability
A study to assess the capability of subsurface flow wetland systems to remove biochemical oxygen demand...
A study to assess the capability of subsurface flow wetland systems to remove biochemical oxygen demand (BOD) and various other chemical constituents resulted in the accompanying data on x = BOD mass loading and y = BOD mass removal.
x = BOD 30 35 37 38 44 103
y = BOD 26 21 9 31 30 75
a)Obtain the estimated ?0 and ?̂1 coefficients. (4 pts.) Show your calculations.
b)Write the linear regression equation.
c)Calculate the coefficient of determination (?^2)
d)Does there appear to be a useful relationship between BOD mass loading and BOD mass removal? State and test the appropriate hypothesis. Use ?=0. 05.
Solutions
orchestra answered 1 year agoRelated Solutions
A study to assess the capability of subsurface flow wetland systems to remove biochemical oxygen demand...
A study to assess the capability of subsurface flow wetland
systems to remove biochemical oxygen demand (BOD) and various other
chemical constituents resulted in the accompanying data on x = BOD
mass loading and y = BOD mass removal.
x =BOD mass loading 8 10 11 13 16 27
y = BOD mass removal 7 8 8 10 27 16
a)Obtain the estimated ??̂0 and ??̂1 coefficients. (4 pts.) Show
your calculations.
b)Write the linear regression equation. (2 pts.)
c)Calculate...
how does the Biochemical Oxygen Demand method work?
how does the Biochemical Oxygen Demand method work?
Wastewater of 30ft3/s with a biochemical oxygen demand (BOD) of 55mg/l, and dissolved oxygen (DO) of...
Wastewater of 30ft3/s with a biochemical oxygen
demand (BOD) of 55mg/l, and dissolved oxygen (DO) of 3.3mg/l enters
a river where the flow is 125ft3/s with an ultimate BOD
of 7.0 mg/l, and DO of 6.8mg/l. The downstream has an average
velocity of 0.8ft/s.
i
Calculate the minimum DO level and its distance in miles downstream
using the oxygen sag equation. Assume k1 = 0.046 per day
and k2 = 0.304 per day. The saturation DO = 8.5mg/l. (1
mile...
Biochemical oxygen demand i.e. BOD) is a measure of the potential damage that can be done...
Biochemical oxygen demand i.e. BOD) is a measure of the
potential damage that can be done to the dissolved oxygen content
of a body of water by organic waste. A BOD is also the amount of
O2required to degrade or
decompose the wastes. Its name comes from the "demand" that organic
carbon has for O2 through biochemical (enzyme)
oxidation.
BOD – demanded oxygen – can be likened to a debt that must be
paid. Dissolved oxygen (DO) can be thought...
In doing Biochemical oxygen demand (B.O.D) what does sodium thiosulphate do and why is starch use...
In doing Biochemical oxygen demand (B.O.D) what does sodium
thiosulphate do and why is starch use as indicator?
Apply systems thinking as a methodology to how you intend to investigate and assess your study...
Apply systems thinking as a methodology to how you intend to
investigate and assess your study project (Power Generator Speed
Breaker), following, and documenting all the 7 steps to Systems
Engineering (SE).
During exercise, blood flow to skeletal muscles must increase to meet the increase in oxygen demand...
During exercise, blood flow to skeletal muscles must increase
to meet the increase in oxygen demand for ATP (energy) production.
The initial response that increases blood flow to
the muscle cells is automatic and independent of the nervous and
endocrine systems.
Which type of homeostatic regulation is this? Explain.
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